Spike



cpu. RUSSELL.

SPIKE. APPLICATION FILED OCT- 6, I919 1A30,758. Patented 0011.3,1922.

lg lr zvezzion' CarZeaDBaaaeZZ, 4? M4 Patented Got. 3, 1922.

UNITED STATE' PATENT iiltii i ibtli CHARLES D. RUSSELL, OF ST. PAUL, IKINNESOTA, ASSIGNOE, BY DIRECT AND TILESNE ASSIGNMENTS, TO RUSSELL-WEBER STEEL PRODUCTS COTMYPANY, F YOUITGSTOVJN,

OHIO, A CORPORATION OF DELAWARE.

SPIKE.

Application filed October 6, 1919. Serial No. 328,887.

To all whom 2'25 may concern:

Be it known that I, CHARLns D. RUssnLL,

a citizen of the United States, residing at St. Paul, in the county of Rainse y and State 6 of Minnesota, have invented new and useful Improvements in Spikes, of which the following is a specification.

My invention relates to improvements in splkes of the class used in railway construction.

Its object is to simplify the trated, described and claimed in spike illusmy Patent No. 1,301,173, of April 22, 1919. and particularly to produce a spike which m more easily and economically from bar steel. These and other objects will more fully hereinafter appear.

In the accompanying drawings Fig. 1 is line 3-3 of Fig. 1.

Referring to the drawings, I have used the numeral 10 to designate the shank of my which as usual improved spike,

At the with an offset head 11.

is provided end of the shank opposite the head the front and rear surfaces of the spike converge to form. a

chisel shaped drive edge 12, which is substantially narrower than the body of the spike. A longitudinal concave channel 13 is formed on opposite sides of the shank, and this channel terminates at one end at a substantial distance below the head and at the other end substantially abovethe chisel.

edge. In the front and rear surfaces of the shank 10 I form a pair of quadrilateral depressions or niortises 14-. Both the side and end walls of these depressions ar e beveled at top and bottom so that they merge into the surface of the shank and into the base of the depression on curved lines, as clearly shown in Figs. 1 and 2. The rounded corners thus produced are easier to roll than the angular junctions of the surfaces of the depressions shown in my patent above mentioned. and the small number of depressions simplify the spike. Further, the shorter chisel edge and the termination of the side slots substantially above that edge make more ees and eco nomical the rolling of the spike.

Having; described my invention what I claim as new and desire to protect by Letters Patent is:

1. In a spike, a shanln a head on one end of said shank, a driving edge at the opposite end of said. shank. curved longitudinal channels in the side surfaces of said shank, and a plurality of spaced mortises in the front and rear surfaces of said shank said mortises each comprising quadrilateral depression having inwardly converging side walls.

2. In a spike. a shank, a head on one end of said shank, a chisel edge at the opposite end of said shank formed by the conve hence of the front and rear surfaces of the shank. said chisel edge being; substantially shorter than the width of said shank, longitudinal concave channels in the side surfaces of said shank, said channels terminating above said chisel edge and below said head. a pair of mortises in said front and rear surfaces. said mortises each comprising: a quadrilateral depression the junctions of he longitudinal, side walls of said. depressions with the surface of the shank and bottom of the mortise. being curved, and webs between said inortises.

In testimony whereof, I have hereunto subscribed my name to this spec fication.

CHARLES D. IIU ESEIJL- 

